diff --git a/app/graphql/types/budget_investment_type.rb b/app/graphql/types/budget_investment_type.rb
new file mode 100644
index 000000000..00b6f32a0
--- /dev/null
+++ b/app/graphql/types/budget_investment_type.rb
@@ -0,0 +1,13 @@
+module Types
+  class BudgetInvestmentType < Types::BaseObject
+    field :id, ID, null: false
+    field :public_author, Types::UserType, null: true
+    field :price, GraphQL::Types::BigInt, null: true
+    field :feasibility, String, null: true
+    field :title, String, null: true
+    field :description, String, null: true
+    field :location, String, null: true
+    field :comments, Types::CommentType.connection_type, null: true
+    field :comments_count, Integer, null: true
+  end
+end
diff --git a/app/graphql/types/budget_type.rb b/app/graphql/types/budget_type.rb
new file mode 100644
index 000000000..92ac2dfbe
--- /dev/null
+++ b/app/graphql/types/budget_type.rb
@@ -0,0 +1,19 @@
+module Types
+  class BudgetType < Types::BaseObject
+    field :id, ID, null: false
+    field :name, String, null: true
+    field :phase, String, null: true
+    field :investments, Types::BudgetInvestmentType.connection_type, "Returns all investments", null: false
+    field :investment, Types::BudgetInvestmentType, null: false do
+      argument :id, ID, required: true, default_value: false
+    end
+
+    def investments
+      Budget::Investment.public_for_api
+    end
+
+    def investment(id:)
+      Budget::Investment.find(id)
+    end
+  end
+end
diff --git a/app/graphql/types/query_type.rb b/app/graphql/types/query_type.rb
index 9f854ed55..4e7697218 100644
--- a/app/graphql/types/query_type.rb
+++ b/app/graphql/types/query_type.rb
@@ -1,5 +1,10 @@
 module Types
   class QueryType < Types::BaseObject
+    field :budgets, Types::BudgetType.connection_type, "Returns all budgets", null: false
+    field :budget, Types::BudgetType, "Returns budget for ID", null: false do
+      argument :id, ID, required: true, default_value: false
+    end
+
     field :comments, Types::CommentType.connection_type, "Returns all comments", null: false
     field :comment, Types::CommentType, "Returns comment for ID", null: false do
       argument :id, ID, required: true, default_value: false
@@ -47,6 +52,14 @@ module Types
       argument :id, ID, required: true, default_value: false
     end
 
+    def budgets
+      Budget.public_for_api
+    end
+
+    def budget(id:)
+      Budget.find(id)
+    end
+
     def comments
       Comment.public_for_api
     end
diff --git a/app/models/budget.rb b/app/models/budget.rb
index 894519282..90f9c3a4b 100644
--- a/app/models/budget.rb
+++ b/app/models/budget.rb
@@ -58,6 +58,7 @@ class Budget < ApplicationRecord
   scope :balloting, -> { where(phase: "balloting") }
   scope :reviewing_ballots, -> { where(phase: "reviewing_ballots") }
   scope :finished, -> { where(phase: "finished") }
+  scope :public_for_api, -> { published }
 
   class << self; undef :open; end
   scope :open, -> { where.not(phase: "finished") }
diff --git a/app/models/budget/investment.rb b/app/models/budget/investment.rb
index b6b2ae6be..871b3bc1f 100644
--- a/app/models/budget/investment.rb
+++ b/app/models/budget/investment.rb
@@ -13,6 +13,7 @@ class Budget
     include Mappable
     include Documentable
     include SDG::Relatable
+    include HasPublicAuthor
 
     acts_as_taggable_on :valuation_tags
     acts_as_votable
@@ -111,6 +112,7 @@ class Budget
     end
 
     scope :for_render, -> { includes(:heading) }
+    scope :public_for_api, -> { where(budget: Budget.public_for_api) }
 
     def self.by_valuator(valuator_id)
       where(budget_valuator_assignments: { valuator_id: valuator_id }).joins(:valuator_assignments)
diff --git a/app/models/comment.rb b/app/models/comment.rb
index cad1bf8fe..3dda76443 100644
--- a/app/models/comment.rb
+++ b/app/models/comment.rb
@@ -38,7 +38,10 @@ class Comment < ApplicationRecord
   scope :sort_by_flags, -> { order(flags_count: :desc, updated_at: :desc) }
   scope :public_for_api, -> do
     not_valuations
-      .where(commentable: [Debate.public_for_api, Proposal.public_for_api, Poll.public_for_api])
+      .where(commentable: [Debate.public_for_api,
+                           Proposal.public_for_api,
+                           Poll.public_for_api,
+                           Budget::Investment.public_for_api])
   end
 
   scope :sort_by_most_voted, -> { order(confidence_score: :desc, created_at: :desc) }
diff --git a/docs/en/features/graphql.md b/docs/en/features/graphql.md
index 8f278b59d..c6141eb95 100644
--- a/docs/en/features/graphql.md
+++ b/docs/en/features/graphql.md
@@ -130,6 +130,8 @@ The models are the following:
 | `User`                  | Users                         |
 | `Debate`                | Debates                       |
 | `Proposal`              | Proposals                     |
+| `Budget`                | Participatory budgets         |
+| `Budget::Investment`    | Budget investments            |
 | `Comment`               | Comments on debates, proposals and other comments |
 | `Geozone`               | Geozones (districts)          |
 | `ProposalNotification`  | Notifications related to proposals |
diff --git a/docs/es/features/graphql.md b/docs/es/features/graphql.md
index 1e4cfa708..0048fbb02 100644
--- a/docs/es/features/graphql.md
+++ b/docs/es/features/graphql.md
@@ -130,6 +130,8 @@ La lista de modelos es la siguiente:
 | `User`                  | Usuarios                     |
 | `Debate`                | Debates                      |
 | `Proposal`              | Propuestas                   |
+| `Budget`                | Presupuestos participativos  |
+| `Budget::Investment`    | Proyectos de gasto           |
 | `Comment`               | Comentarios en debates, propuestas y otros comentarios |
 | `Geozone`               | Geozonas (distritos)         |
 | `ProposalNotification`  | Notificaciones asociadas a propuestas |
diff --git a/spec/lib/graphql_spec.rb b/spec/lib/graphql_spec.rb
index 459547f16..c39939c8c 100644
--- a/spec/lib/graphql_spec.rb
+++ b/spec/lib/graphql_spec.rb
@@ -193,6 +193,17 @@ describe "Consul Schema" do
     end
   end
 
+  describe "Budgets" do
+    it "does not include unpublished budgets" do
+      create(:budget, :drafting, name: "Draft")
+
+      response = execute("{ budgets { edges { node { name } } } }")
+      received_names = extract_fields(response, "budgets", "name")
+
+      expect(received_names).to eq []
+    end
+  end
+
   describe "Debates" do
     it "does not include hidden debates" do
       create(:debate, title: "Visible")
@@ -252,16 +263,17 @@ describe "Consul Schema" do
   end
 
   describe "Comments" do
-    it "only returns comments from proposals, debates and polls" do
+    it "only returns comments from proposals, debates, polls and Budget::Investment" do
       create(:comment, commentable: create(:proposal))
       create(:comment, commentable: create(:debate))
       create(:comment, commentable: create(:poll))
-      build(:comment, commentable: create(:budget_investment)).save!(skip_validation: true)
+      create(:comment, commentable: create(:topic))
+      create(:comment, commentable: create(:budget_investment))
 
       response = execute("{ comments { edges { node { commentable_type } } } }")
       received_commentables = extract_fields(response, "comments", "commentable_type")
 
-      expect(received_commentables).to match_array ["Proposal", "Debate", "Poll"]
+      expect(received_commentables).to match_array ["Proposal", "Debate", "Poll", "Budget::Investment"]
     end
 
     it "displays comments of authors even if public activity is set to false" do
@@ -336,6 +348,19 @@ describe "Consul Schema" do
       expect(received_comments).to match_array ["I can see the poll"]
     end
 
+    it "does not include comments from hidden investments" do
+      visible_investment = create(:budget_investment)
+      hidden_investment  = create(:budget_investment, :hidden)
+
+      create(:comment, commentable: visible_investment, body: "I can see the investment")
+      create(:comment, commentable: hidden_investment, body: "This investment is hidden!")
+
+      response = execute("{ comments { edges { node { body } } } }")
+      received_comments = extract_fields(response, "comments", "body")
+
+      expect(received_comments).to match_array ["I can see the investment"]
+    end
+
     it "does not include comments of debates that are not public" do
       not_public_debate = create(:debate, :hidden)
       not_public_debate_comment = create(:comment, commentable: not_public_debate)
@@ -369,6 +394,16 @@ describe "Consul Schema" do
       expect(received_comments).not_to include(not_public_poll_comment.body)
     end
 
+    it "does not include comments of investments that are not public" do
+      investment = create(:budget_investment, budget: create(:budget, :drafting))
+      not_public_investment_comment = create(:comment, commentable: investment)
+
+      response = execute("{ comments { edges { node { body } } } }")
+      received_comments = extract_fields(response, "comments", "body")
+
+      expect(received_comments).not_to include(not_public_investment_comment.body)
+    end
+
     it "only links public comments" do
       user = create(:administrator).user
       create(:comment, author: user, body: "Public")
@@ -642,4 +677,35 @@ describe "Consul Schema" do
       expect(Time.zone.parse(received_timestamps.first)).to eq Time.zone.parse("2017-12-31 9:00:00")
     end
   end
+
+  describe "Budget investment" do
+    it "does not include hidden comments" do
+      budget = create(:budget)
+      investment = create(:budget_investment, budget: budget)
+
+      create(:comment, commentable: investment, body: "Visible")
+      create(:comment, :hidden, commentable: investment, body: "Hidden")
+
+      query = <<~GRAPHQL
+        {
+          budget(id: #{budget.id}) {
+            investment(id: #{investment.id}) {
+              comments {
+                edges {
+                  node {
+                    body
+                  }
+                }
+              }
+            }
+          }
+        }
+      GRAPHQL
+
+      response = execute(query)
+      received_bodies = extract_fields(response, "budget.investment.comments", "body")
+
+      expect(received_bodies).to eq ["Visible"]
+    end
+  end
 end
diff --git a/spec/models/comment_spec.rb b/spec/models/comment_spec.rb
index e5302665b..8fe0b6e30 100644
--- a/spec/models/comment_spec.rb
+++ b/spec/models/comment_spec.rb
@@ -175,8 +175,14 @@ describe Comment do
       expect(Comment.public_for_api).to be_empty
     end
 
-    it "does not return comments on elements which are not debates or proposals" do
-      create(:comment, commentable: create(:budget_investment))
+    it "returns comments on budget investments" do
+      comment = create(:comment, commentable: create(:budget_investment))
+
+      expect(Comment.public_for_api).to eq [comment]
+    end
+
+    it "does not return comments on elements which are not debates, proposals or budget investments" do
+      create(:comment, commentable: create(:topic))
 
       expect(Comment.public_for_api).to be_empty
     end